20021113133 has 8 divisors (see below), whose sum is σ = 23091192960. Its totient is φ = 17003513520.

The previous prime is 20021113127. The next prime is 20021113207. The reversal of 20021113133 is 33131112002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20021113133 - 2¹⁴ = 20021096749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021113433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13119233 + ... + 13120758.

It is an arithmetic number, because the mean of its divisors is an integer number (2886399120).

Almost surely, 2^20021113133 is an apocalyptic number.

It is an amenable number.

20021113133 is a deficient number, since it is larger than the sum of its proper divisors (3070079827).

20021113133 is a wasteful number, since it uses less digits than its factorization.

20021113133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26240107.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 20021113133 its reverse (33131112002), we get a palindrome (53152225135).

The spelling of 20021113133 in words is "twenty billion, twenty-one million, one hundred thirteen thousand, one hundred thirty-three".